Which of the following is considered to be a disadvantage of fluoridating drinking water?
A) The concentration of fluoride in drinking water is usually 0.7-1.0 ppm.
B) Some hydroxide ions in tooth enamel are replaced by fluoride ions.
C) High fluoride consumption in early childhood can cause mottling of the teeth.
D) Treatment with fluoride results in harder tooth enamel.
Correct Answer:
Verified
Q63: What percentage of public water supplies in
Q64: Bottled water is becoming an increasingly popular
Q65: Secondary treatment of sewage involves
A)filtering and aeration.
B)settling
Q66: Charcoal filtration of wastewater is an excellent
Q67: Which of the following statements about bottled
Q69: Primary sewage treatment involves
A)aeration.
B)settling.
C)chemical treatment.
D)Primary sewage treatment
Q70: Secondary treatment of wastewater is not effective
Q71: Municipal water supplies are generally treated either
Q72: One of the advantages of treating sewage
Q73: You can live for weeks without food,but
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents